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Bolens 1556 tractor - hydraulic lift problems

Posted by ron2012 none (My Page) on
Mon, Apr 30, 12 at 15:54

my bolens 1556 hydraulic lift-down operation pretty much doesn't work; the attachment lowers down at a snail's pace whereas the lift-raise does raise the attach at a quick pace. the lift level returns to the middle position when released. any ideas of why the lift-down is so-o-o slow? and how to fix it? it appears that gravity of the attachment doesn't even help the lowering movement.

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RE: Bolens 1556 tractor - hydraulic lift problems

When have you changed the hydraulic filter?
Gravity can't force the oil being returned to the tank through a partly clogged filter very fast.
Other hydraulics (if you have them) might operate with double acting cylinders which actually power in......and out... under hydraulic pressure, so those things don't show a lot of slow down due to a clogged filter. But even though double acting cylinders don't slow down that much, there is still reason to be concerned because where a gravity down single acting cylinder might not unseat the bypass in the filter.................double acting cylinders certainly will and that means the filter is just circulating unfiltered oil when it goes into bypass.

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